tests/multiboot/libc.h

   1 /*
   2  * Copyright (c) 2013 Kevin Wolf <kwolf@redhat.com>
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a copy
   5  * of this software and associated documentation files (the "Software"), to deal
   6  * in the Software without restriction, including without limitation the rights
   7  * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
   8  * copies of the Software, and to permit persons to whom the Software is
   9  * furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
  17  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  18  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
  19  * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
  20  * THE SOFTWARE.
  21  */
  22
  23 #ifndef LIBC_H
  24 #define LIBC_H
  25
  26 /* Integer types */
  27
  28 typedef unsigned long long uint64_t;
  29 typedef unsigned int uint32_t;
  30 typedef unsigned short uint16_t;
  31 typedef unsigned char uint8_t;
  32
  33 typedef signed long long int64_t;
  34 typedef signed int int32_t;
  35 typedef signed short int16_t;
  36 typedef signed char int8_t;
  37
  38 typedef uint32_t uintptr_t;
  39
  40
  41 /* stdarg.h */
  42
  43 typedef __builtin_va_list       va_list;
  44 #define va_start(ap, X)         __builtin_va_start(ap, X)
  45 #define va_arg(ap, type)        __builtin_va_arg(ap, type)
  46 #define va_end(ap)              __builtin_va_end(ap)
  47
  48
  49 /* Port I/O functions */
  50
  51 static inline void outb(uint16_t port, uint8_t data)
  52 {
  53     asm volatile ("outb %0, %1" : : "a" (data), "Nd" (port));
  54 }
  55
  56
  57 /* Misc functions */
  58
  59 void printf(const char *fmt, ...);
  60
  61 #endif